Bug #72019 [Nab]: stdin fgets substr

Edit report at https://bugs.php.net/bug.php?id=72019&edit=1 ID: 72019 User updated by: k6dg at outlook dot com Reported by: k6dg at outlook dot com Summary: stdin fgets substr Status: Not a bug Type: Bug Package: CGI/CLI related Operating System: windows7 PHP Version: 7.0.5 Block user comment: N Private report: N New Comment: ZTS version and NTS version get difference result Previous Comments: ------------------------------------------------------------------------ [2016-04-14 02:47:36] jhdxr@php.net first, I think you confused expected result and actual result. "12hello" should be the expected result while "hello" is printed. In fact, php works as expected. When you type "12<enter> in windows, the string actually is "12\r\n", and result of substr($test, 0, -1) is "12\r". "\r" means moving cursor to the begining of the line, and if you continue print something, they will cover the origin display. you can try stdout('a') instead of stdout('hello') and you will see "a2", because "a" covers "1". If you want to remove the line break in the output, trim or substr($in, 0, -strlen(PHP_EOL)) may be a better choice. ------------------------------------------------------------------------ [2016-04-13 17:04:59] k6dg at outlook dot com Description: ------------ it only appear in the ZTS version. use php://stdin get a line with '\n'. use substr cutoff last char and return it. use php://stdout print the return value, and print something else. the return value can not be seen. Test script: --------------- function stdin () { $stdin = fopen('php://stdin','r'); $text = fgets($stdin); // This fclose($stdin); return substr($text, 0, -1); // and This couse the problem } function stdout(string $data) { $stdout = fopen('php://stdout','a'); $length = fwrite($stdout, $data); fclose($stdout); // $length = file_put_contents ('php://stdout', $data, FILE_APPEND); return $length; } stdout(stdin()); stdout('hello'); Expected result: ---------------- input: 12 output: hello Actual result: -------------- input: 12 output: 12hello ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=72019&edit=1